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JFreeChart: Line Chart Demo 1
/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2004, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jfreechart/index.html
*
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation;
* either version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* -------------------
* LineChartDemo1.java
* -------------------
* (C) Copyright 2002-2004, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* $Id: LineChartDemo1.java,v 1.27 2004/05/27 09:10:42 mungady Exp $
*
* Changes
* -------
* 08-Apr-2002 : Version 1 (DG);
* 30-May-2002 : Modified to display values on the chart (DG);
* 25-Jun-2002 : Removed redundant import (DG);
* 11-Oct-2002 : Fixed errors reported by Checkstyle (DG);
*
*/
package org.jfree.chart.demo;
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Dimension;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.LineAndShapeRenderer;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
/**
* A simple demonstration application showing how to create a line chart using data from a
* {@link CategoryDataset}.
*/
public class LineChartDemo1 extends ApplicationFrame {
/**
* Creates a new demo.
*
* @param title the frame title.
*/
public LineChartDemo1(final String title) {
super(title);
final CategoryDataset dataset = createDataset();
final JFreeChart chart = createChart(dataset);
final ChartPanel chartPanel = new ChartPanel(chart);
chartPanel.setPreferredSize(new Dimension(500, 270));
setContentPane(chartPanel);
}
/**
* Creates a sample dataset.
*
* @return The dataset.
*/
private CategoryDataset createDataset() {
// row keys...
final String series1 = "First";
final String series2 = "Second";
final String series3 = "Third";
// column keys...
final String type1 = "Type 1";
final String type2 = "Type 2";
final String type3 = "Type 3";
final String type4 = "Type 4";
final String type5 = "Type 5";
final String type6 = "Type 6";
final String type7 = "Type 7";
final String type8 = "Type 8";
// create the dataset...
final DefaultCategoryDataset dataset = new DefaultCategoryDataset();
dataset.addValue(1.0, series1, type1);
dataset.addValue(4.0, series1, type2);
dataset.addValue(3.0, series1, type3);
dataset.addValue(5.0, series1, type4);
dataset.addValue(5.0, series1, type5);
dataset.addValue(7.0, series1, type6);
dataset.addValue(7.0, series1, type7);
dataset.addValue(8.0, series1, type8);
dataset.addValue(5.0, series2, type1);
dataset.addValue(7.0, series2, type2);
dataset.addValue(6.0, series2, type3);
dataset.addValue(8.0, series2, type4);
dataset.addValue(4.0, series2, type5);
dataset.addValue(4.0, series2, type6);
dataset.addValue(2.0, series2, type7);
dataset.addValue(1.0, series2, type8);
dataset.addValue(4.0, series3, type1);
dataset.addValue(3.0, series3, type2);
dataset.addValue(2.0, series3, type3);
dataset.addValue(3.0, series3, type4);
dataset.addValue(6.0, series3, type5);
dataset.addValue(3.0, series3, type6);
dataset.addValue(4.0, series3, type7);
dataset.addValue(3.0, series3, type8);
return dataset;
}
/**
* Creates a sample chart.
*
* @param dataset a dataset.
*
* @return The chart.
*/
private JFreeChart createChart(final CategoryDataset dataset) {
// create the chart...
final JFreeChart chart = ChartFactory.createLineChart(
"Line Chart Demo 1", // chart title
"Type", // domain axis label
"Value", // range axis label
dataset, // data
PlotOrientation.VERTICAL, // orientation
true, // include legend
true, // tooltips
false // urls
);
// NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...
// final StandardLegend legend = (StandardLegend) chart.getLegend();
// legend.setDisplaySeriesShapes(true);
// legend.setShapeScaleX(1.5);
// legend.setShapeScaleY(1.5);
//legend.setDisplaySeriesLines(true);
chart.setBackgroundPaint(Color.white);
final CategoryPlot plot = (CategoryPlot) chart.getPlot();
plot.setBackgroundPaint(Color.lightGray);
plot.setRangeGridlinePaint(Color.white);
// customise the range axis...
final NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
rangeAxis.setAutoRangeIncludesZero(true);
// ****************************************************************************
// * JFREECHART DEVELOPER GUIDE *
// * The JFreeChart Developer Guide, written by David Gilbert, is available *
// * to purchase from Object Refinery Limited: *
// * *
// * http://www.object-refinery.com/jfreechart/guide.html *
// * *
// * Sales are used to provide funding for the JFreeChart project - please *
// * support us so that we can continue developing free software. *
// ****************************************************************************
// customise the renderer...
final LineAndShapeRenderer renderer = (LineAndShapeRenderer) plot.getRenderer();
// renderer.setDrawShapes(true);
renderer.setSeriesStroke(
0, new BasicStroke(
2.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND,
1.0f, new float[] {10.0f, 6.0f}, 0.0f
)
);
renderer.setSeriesStroke(
1, new BasicStroke(
2.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND,
1.0f, new float[] {6.0f, 6.0f}, 0.0f
)
);
renderer.setSeriesStroke(
2, new BasicStroke(
2.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND,
1.0f, new float[] {2.0f, 6.0f}, 0.0f
)
);
// OPTIONAL CUSTOMISATION COMPLETED.
return chart;
}
/**
* Starting point for the demonstration application.
*
* @param args ignored.
*/
public static void main(final String[] args) {
final LineChartDemo1 demo = new LineChartDemo1("Line Chart Demo");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}
